The great crested grebe is the largest member of the grebe family, with some larger species residing in the Americas. They measure 20 in long with 29 in wingspan and weigh 1.5 kg. It is an excellent swimmer and diver, and pursues its fish prey underwater. The adults are unmistakable in summer with head and neck decorations. In winter, this is whiter than most grebes, with white above the eye, and a pink bill.